Why is there a time limit on order editing (60 days)? Why?!
If a store is running a pre-order campaign (many such campaigns can last 6 months), it cannot edit customer orders and therefore if a customer wants 2 of a pre-order item instead of 1, but wants to save money in shipping, we cannot go in and edit their existing order; instead, we have to cancel the existing order and have the customer place a new order (running the risk of lost sales). Why would you need to add an editing limit at all?